As summer arrives and spring is behind us, questions about summer weeds are in full bloom.
Summer annual weeds like spurge, knotweed and purslane are difficult to control for a number of reasons.
- They germinate at different times.
- They can mature quickly, overwhelming the lawn and you!
- Summer weeds have a thick waxy layer on their leaves that prevents water loss AND makes it difficult for weed controls to work.
The good news is these weeds will only last a few more months. Weedy grasses, like crabgrass and foxtail, will die after the first frost, along with summer annuals such as spurge, purslane and knotweed.
We don’t recommend applying weed controls during the summer, as they can also damage the grass. Applying herbicides now can also be detrimental to ornamentals, trees, flowers and vegetable gardens. These plants can be damaged through direct application or drift (when the wind spreads the product).
So, what do you do to keep a weed infestation from happening again?
- This fall, aerate and seed your lawn in the fall. Aeration and seeding creates a thicker turf, which crowds out weeds naturally.
- In the spring, use a pre-emergent weed control like Natural Alternative® Inhibitor® to kill weed seeds before they have a chance to grow. Just remember not to plant grass seed and use a pre-emergent product at the same time, because the pre-emergent will prevent the seed from sprouting. Wait six weeks between applying Inhibitor® and grass seed.)
- Follow our guidelines for proper mowing practices, irrigation and fertilization programs to reduce weed populations throughout the year. Healthy turf is a first defense against weeds.
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